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diff --git a/src/Commons/IExternEventCanceler.h b/src/Commons/IExternEventCanceler.h
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+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @author      Grzegorz Krawczyk (g.krawczyk@samsung.com)
+ * @version     0.1
+ * @brief
+ */
+
+#ifndef WRTDEVICEAPIS_COMMONS_IEXTERN_EVENT_CANCELER_H_
+#define WRTDEVICEAPIS_COMMONS_IEXTERN_EVENT_CANCELER_H_
+
+#include <memory>
+
+#include <dpl/log/wrt_log.h>
+
+namespace WrtDeviceApis {
+namespace Commons {
+/**
+ * This class is related to JSPendingOperation object.
+ *
+ * It is interface for controllers which want to perform
+ * an additional accation when the PendingOberation object
+ * is canceled.
+ * */
+template<class TemplateEvent>
+class IExternEventCanceler
+{
+  public:
+    virtual void OnCancelEvent(const std::shared_ptr<TemplateEvent>& event) = 0;
+
+    virtual ~IExternEventCanceler()
+    {}
+};
+}
+} // WrtDeviceApisCommon
+
+#endif // WRTDEVICEAPIS_COMMONS_IEXTERN_EVENT_CANCELER_H_